scholarly journals A study of mechanical properties of titanium alloy Ti-6al-4v used as dental implant material

2017 ◽  
Vol 3 (11) ◽  
pp. 288 ◽  
Author(s):  
Hosam Alegaly Alaraby ◽  
Magdi Mohamad A Lswalhia ◽  
Tajammul Ahmed
Keyword(s):  
Titanium Alloy ◽  
Dental Implant ◽  
Volume Fraction ◽  
Solution Treatment ◽  
High Strength ◽  
Optical Microscope ◽  
Temperature Phase ◽  
Implant Material ◽  
Implant Dentistry ◽  
The Right

<p class="abstract"><strong>Background:</strong> Titanium and its alloys are being extensively researched and are applied relatively in different fields of dentistry since 1970s. Its inherent advantages like high strength, ductility, low modulus of elasticity, ease of formation of oxidized surface layer, ability to retain mechanical integrity after autoclave and relatively low toxicity has led to extensive application of titanium and its alloys in implant dentistry.</p><p class="abstract"><strong>Methods:</strong> The Titanium alloy Ti-6Al-4V dental implant material used for the present study was procured from Mishra Dhatu Nigam (Midhani, Hyderabad). The mechanically polished samples were etched using Kroll’s reagent (5% hydrofluoric acid+10% nitric acid+85% water). The etched specimens were examined under optical microscope.  </p><p class="abstract"><strong>Results:</strong> The primary α phase being the low temperature phase, is stable and shows single phase microstructure. The size and volume fraction of the primary α and transformed β phases depend on the solution treatment temperatures and the subsequent rate of cooling.</p><p><strong>Conclusions:</strong> The success of the treatment modality relies on the knowledge of the properties required to employ them at the right situation. </p>

Microstructure and Property of a New Metastable β Titanium Alloy

2013 ◽  
Vol 747-748 ◽  
pp. 932-936 ◽  
Author(s):  
Xin Nan Wang ◽  
Yue Fei ◽  
Xiao Hu Zhou ◽  
Zhi Shou Zhu ◽  
Jun Li ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Titanium Alloy ◽  
Aging Temperature ◽  
Volume Fraction ◽  
Solution Treatment ◽  
Aging Treatment ◽  
Optical Microscope ◽  
Solution Treated ◽  
Α Phase ◽  
Scanning Electron

The evolution regularities of microstructure and property of a new metastable β titanium alloy with different solution treatment and aging treatment were studied using optical microscope (OM), scanning electron microscopy (SEM) and tensile test. The results show that, the volume fraction of primary α phase decreases and globularization of α phase occurs with the increasing aging temperature from 540 to 580 and solution treated temperature from 800 to 820. When the solution treated temperature is 820, the acicular secondary α phase precipitates along β grain boundary. The strength of the investigated alloy increases and the ductility decreases with the solution treated temperature increasing. While the strength of the investigated alloy increases and the ductility decreases with the aging temperature decreasing.

Beta-titanium biomedical alloy: effect of thermal processing on mechanical properties

2012 ◽  
Vol 57 (3) ◽  
pp. 753-757 ◽  
Author(s):  
K.V. Sudhakar ◽  
K. Konen ◽  
K. Floreen
Keyword(s):  
Mechanical Properties ◽  
Titanium Alloy ◽  
Testing Machine ◽  
Solution Treatment ◽  
High Strength ◽  
Fracture Morphology ◽  
Beta Titanium Alloy ◽  
Beta Titanium ◽  
Digital Microscope ◽  
Aging Conditions

A new β-titanium alloy (Ti-3Al-5V-6Cr-3Mo-3Zr) was investigated as a function of heat treatment to evaluate its mechanical properties. The cold drawn beta-titanium alloy was subjected to β-annealing as well as solution treatment and aging treatments. The mechanical properties were evaluated using MTS Landmark-servo hydraulic Universal Testing Machine. The beta-titanium alloy demonstrated an excellent combination of strength and ductility for both β-annealing and solution treatment and aging conditions. The influence of thermal treatments on microstructure was studied with HiRox digital microscope. The fracture morphology investigated revealed predominantly cup and cone/dimpled fracture surface features demonstrating excellent toughness in addition to high strength and low stiffness that are suitable for biomedical applications.

scholarly journals Influence of Microstructures on Tensile Properties at 400℃ of TC4 Titanium Alloy

2020 ◽  
Vol 321 ◽  
pp. 11048
Author(s):  
Ren Yong ◽  
Yang Nan ◽  
Lei Jinwen ◽  
Li Shaoqiang ◽  
Du Yuxuan
Keyword(s):  
Titanium Alloy ◽  
Yield Strength ◽  
Tensile Properties ◽  
Volume Fraction ◽  
Solution Treatment ◽  
Air Cooling ◽  
Phase Volume Fraction ◽  
Tc4 Titanium Alloy ◽  
Α Phase ◽  
Cooling Speed

The effects of primary α phase volume fraction on the tensile properties at 400℃ of TC4 titanium alloy was studied by different solution temperature(Tβ-(10~80)℃). The effects of the thick of secondary α phase on the tensile properties at 400℃ of TC4 titanium alloy was studied by different cooling speed after solution treatment (water quench, air cooling, furnace cooling). The results show that with the decrease of primary α phase, the tensile and yield strength increase up, but the ductility has a little change. The thick of secondary α phase increases with the deceases of cooling speed after solution treatment, highest tensile and yield strength by water quench, the tensile strength of air cooling and furnace cooling were basically the same, but the yield strength of furnace cooling was 40MPa lower than air cooling. Therefore, the influence of the primary α phase volume fraction on the tensile strength at 400℃ was particularly obvious, we can control solution treatment and cooling way in combination with different requirements.

Effect of Annealing Process on Microstructure and Tensile Properties of TC16 Titanium Alloy after Rapid Heat Treatment

2021 ◽  
Vol 1032 ◽  
pp. 152-156
Author(s):  
Peng Lei ◽  
Shu Cheng Dong ◽  
Guang Yu Ma ◽  
Tuo Cheng ◽  
O.M. Ivasishin
Keyword(s):  
Heat Treatment ◽  
Titanium Alloy ◽  
Tensile Properties ◽  
High Strength ◽  
Optical Microscope ◽  
Annealing Process ◽  
Test Machine ◽  
Two Phase ◽  
Reduction Of Area ◽  
Rapid Heat Treatment

TC16 titanium alloy is a martensite α+β two-phase high strength titanium alloy, which can improve its structure and enhance properties through heat treatment. Effect of annealing process on microstructure and tensile properties of TC16 titanium alloy was investigated using optical microscope, scanning electron microscope and universe tensile test machine. The results show that when annealed at 720°C for 4h then furnace cooling to ambient temperature, the tensile strength of the TC16 alloy reaches nearly 900MPa,the elongation reaches 19.6% and the reduction of area reaches 65%, which present a good comprehensive performance.

Experimental Study on Heat Yreatment Processing of a New Low Cost Titanium Alloy Used in Aviation Field

2013 ◽  
Vol 747-748 ◽  
pp. 919-925 ◽  
Author(s):  
Guo Qiang Shang ◽  
Xin Nan Wang ◽  
Yue Fei ◽  
Jun Li ◽  
Zhi Shou Zhu ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Low Cost ◽  
Solution Treatment ◽  
Heat Treating ◽  
Optical Microscope ◽  
Phase Region ◽  
Solution Temperature ◽  
Two Phase ◽  
Common Solution ◽  
Strength And Plasticity

The effect of common solution treatment, two-step solution treatment and aging, solution treatment and aging (STA) on the microstructure and mechanical properties of a new low cost titanium alloy used in aviation field were investigated by optical microscope (OM), scanning electron microscopy (SEM) and tensile test. The results show that a typical equiaxed structure can be obtained by common solution treatment leading to a good combination of strength and plasticity. Besides, solution heat treating in the β region and subsequently ageing at a low temperature results in a significant increase in mechanical strength and a little decrease in plasticity. When the solution temperature is at α+β two-phase region (895), the low cost titanium alloy acquires the best combination of strength and ductility.

Effect of Solution Treatment on Microstructure and Mechanical Properties of Hot-Extruded Cu-15Ni-8Sn Alloy

2017 ◽  
Vol 898 ◽  
pp. 1156-1162
Author(s):  
Xun Wang ◽  
Chao Zhao ◽  
Yan Gen Yu ◽  
Zong Qiang Luo ◽  
Wei Wen Zhang
Keyword(s):  
Mechanical Properties ◽  
Volume Fraction ◽  
Solution Treatment ◽  
Optical Microscope ◽  
Solution Time ◽  
Solution Temperature ◽  
Scanning Calorimetry ◽  
Annealing Twins ◽  
Optimum Solution ◽  
Electronic Microscope

The effects of solution treatment on the microstructure evolution of hot-extruded Cu-15Ni-8Sn alloy were investigated by optical microscope (OM), scanning electronic microscope (SEM), differential scanning calorimetry (DSC) and tensile testing, and the effects of solution temperature and time on the mechanical properties of the alloys were analyzed. The results indicated that, the γ-phases precipitated at first and then dissolved with the extension of the solution time during solutionizing at 800 C,the volume fraction of theγ-phase reached its peak at about 1h. However when solutionizing at 860°C, theγ-phase solely dissolved gradually with the extension of the solution time . In addition, a small amount of annealing twins appeared intragranular in the process of solution treatment. The γ-phase dissolution and the grain growth of α (Cu) were the main softening factors of the alloy during the solution treatment. Through overall consideration, the optimum solution treatment was annealing at 840°Cfor 1 h.

Influence of Solution Conditions on Aging Response of Ti-3.5Al-5Mo-4V-2Cr-1Fe-2Zr-2Sn Titanium Alloy

2010 ◽  
Vol 146-147 ◽  
pp. 1815-1820 ◽  
Author(s):  
Peng Ge
Keyword(s):  
Titanium Alloy ◽  
Solution Treatment ◽  
High Strength ◽  
Age Hardening ◽  
Air Cooling ◽  
Beta Titanium Alloy ◽  
Beta Titanium ◽  
Aging Response ◽  
Aging Conditions ◽  
Metastable Beta

Ti-3.5Al-5Mo-4V-2Cr-1Fe-2Zr-2Sn titanium alloy is a new high strength metastable beta titanium alloy which was designed according to the principle of ‘near critical molybdenum equivalent and multicomponent strengthening’. The effect of solution treatment on aging responses of the new alloy including room temperature tensile properties and microstructures were investigated. There is a tendency that the tensile strength is increasing with the increase of solution temperatures on the same aging conditions and water quenching from solution temperatures can produce higher age hardening effect than that treated by air cooling. The results revealed that the specific aging response of the new alloy is from the high driving force of phase precipitation together with the effect of excess vacancies.

scholarly journals Unusual Case of Osseointegrated Dental Implant Migration into Maxillary Sinus Removed 12 Years after Insertion

2017 ◽  
Vol 2017 ◽  
pp. 1-6 ◽  
Author(s):  
Mauro Laureti ◽  
Nicola Ferrigno ◽  
Daniele Rosella ◽  
Piero Papi ◽  
Francesca Mencio ◽  
...  
Keyword(s):  
Foreign Body ◽  
Maxillary Sinus ◽  
Dental Implant ◽  
Panoramic Radiograph ◽  
Implant Migration ◽  
Patient Reported ◽  
Systemic Problems ◽  
Implant Dentistry ◽  
The Right

Displacement of dental implants into the maxillary sinus is not an uncommon event in implant dentistry and may lead to serious complications, such as sinusitis. To avoid systemic problems, performing the removal of the foreign body as soon as possible is suggested. Despite the fact that early implants dislocation has been reported several times, late migration into maxillary sinus has been described by just a few studies. The purpose of this study was to report a rare case of dental implant migration into maxillary sinus after 12 years of function. A 61-year-old woman came to our attention in June 2015 after being visited by an otolaryngologist and being diagnosed with sinusitis and presence of a foreign body into the right maxillary sinus. A panoramic radiograph and a CT scan showed the migration of dental implant sited in 1.6 positions into the maxillary sinus. The implant was removed following a Caldwell-Luc procedure under local anesthesia. Postoperative course was uncomplicated and the patient reported no symptoms of sinusitis after 12 months of follow-up.

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